Is there a gcc option to assume all extern "C" functions cannot propagate exceptions?

Question

Is there any way, short of putting an attribute on each function prototype, to let gcc know that C functions can never propagate exceptions, i.e. that all functions declared inside extern "C" should be __attribute__((nothrow))? Ideal would be a -f style command line option.

Answer 1

You can always use -fno-exceptions which will ensure that the c++ compiler does not generate exception propagation code.